{"product_id":"beckhoff-elx3204-intrinsically-safe-ethercat-terminal","title":"BECKHOFF ELX3204 Intrinsically Safe EtherCAT Terminal","description":"\u003ch3\u003eDescription\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eBECKHOFF ELX3204\u003c\/strong\u003e is a high-precision, 4-channel analog input terminal designed for direct temperature measurement using resistance temperature detectors (RTDs) in hazardous locations. This intrinsically safe (Ex i) EtherCAT Terminal enables sensors located in explosive atmospheres—such as Zone 0\/20 or Zone 1\/21—to be wired directly to the I\/O system, eliminating the need for external barriers or isolation amplifiers.\u003c\/p\u003e\n\u003cp\u003eEquipped with 16-bit resolution, the \u003cstrong\u003eBECKHOFF ELX3204\u003c\/strong\u003e delivers highly accurate temperature signals back to the controller. It supports a broad range of standard resistance-based sensors, including platinum and nickel RTDs, as well as direct resistance measurements. Power for the E-bus and the internal electronics is managed safely through the EtherCAT Terminal system in conjunction with an ELX9560 power supply terminal, ensuring electrical safety and signal isolation.\u003c\/p\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFour differential analog input channels for RTD sensors and resistance measurements.\u003c\/li\u003e\n  \u003cli\u003eIntrinsically safe (Ex i) design for direct connection to sensors in hazardous zones.\u003c\/li\u003e\n  \u003cli\u003eHigh-resolution 16-bit analog-to-digital conversion for precise process value monitoring.\u003c\/li\u003e\n  \u003cli\u003eConfigurable 2-wire connection technology per channel.\u003c\/li\u003e\n  \u003cli\u003eIntegrated limit value monitoring, digital filters, and sensor-specific characteristic curve linearization.\u003c\/li\u003e\n  \u003cli\u003eDiagnostic capabilities supported by integrated signal LEDs indicating channel status and errors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIntrinsically safe temperature monitoring in chemical and petrochemical processing plants.\u003c\/li\u003e\n  \u003cli\u003eDirect RTD sensor interfacing inside explosive gas and dust environments (Zone 0\/20, Zone 1\/21).\u003c\/li\u003e\n  \u003cli\u003eOil and gas refinery process automation where explosion protection is required.\u003c\/li\u003e\n  \u003cli\u003ePharmaceutical processing systems handling volatile solvents.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ch4\u003eGeneral\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eManufacturer\u003c\/td\u003e\n      \u003ctd\u003eBECKHOFF\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eModel\u003c\/td\u003e\n      \u003ctd\u003eELX3204\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProduct Type\u003c\/td\u003e\n      \u003ctd\u003eEtherCAT Terminal, Analog Input, Ex i\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n      \u003ctd\u003e4 differential inputs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDesign Form\u003c\/td\u003e\n      \u003ctd\u003eCompact terminal housing with signal LEDs\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMaterial\u003c\/td\u003e\n      \u003ctd\u003ePolycarbonate\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eElectrical and Power\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Supply\u003c\/td\u003e\n      \u003ctd\u003eVia the E-bus\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSupply Voltage Electronics\u003c\/td\u003e\n      \u003ctd\u003e24 V DC (via power contacts), ELX9560 power supply required\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption E-bus\u003c\/td\u003e\n      \u003ctd\u003etyp. 70 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eCurrent Consumption Power Contacts\u003c\/td\u003e\n      \u003ctd\u003etyp. 10 mA\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003ePower Contacts\u003c\/td\u003e\n      \u003ctd\u003e2 blade\/spring contacts\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eSignal and Measurement\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSensor Types\u003c\/td\u003e\n      \u003ctd\u003ePt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni1000, KT(Y) sensors, resistance (10 Ohm to 4 kOhm)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Method\u003c\/td\u003e\n      \u003ctd\u003e2-wire\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTemperature Range (Pt sensors)\u003c\/td\u003e\n      \u003ctd\u003e-200 to +850 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eTemperature Range (Ni sensors)\u003c\/td\u003e\n      \u003ctd\u003e-60 to +250 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eResolution\u003c\/td\u003e\n      \u003ctd\u003e16 bit (up to 0.01 degC per digit; preset: 0.1 degC per digit)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Current\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; 1 mA (depending on sensor and measuring range)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMeasuring Error\u003c\/td\u003e\n      \u003ctd\u003e\u0026lt; +-0.3% (relative to full scale value)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInternal Resistance\u003c\/td\u003e\n      \u003ctd\u003etyp. \u0026gt;= 10 kOhm (differential)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInput Filter Limit Frequency\u003c\/td\u003e\n      \u003ctd\u003etyp. 1 kHz\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConversion Time\u003c\/td\u003e\n      \u003ctd\u003e10 to 3300 ms (adjustable, default: 270 ms)\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eMechanical, Environmental, and Connection\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n      \u003ctd\u003e12 mm x 100 mm x 68 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWeight\u003c\/td\u003e\n      \u003ctd\u003eapprox. 60 g\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eInstallation\u003c\/td\u003e\n      \u003ctd\u003eOn 35 mm DIN rail (EN 60715) with lock\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eWiring Technology\u003c\/td\u003e\n      \u003ctd\u003eSpring actuation by screwdriver\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Cross-Section (Solid\/Stranded)\u003c\/td\u003e\n      \u003ctd\u003e0.08 to 2.5 mm² (AWG 28 to 14)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eConnection Cross-Section (with Ferrule)\u003c\/td\u003e\n      \u003ctd\u003e0.14 to 1.5 mm² (AWG 26 to 16)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStripping Length\u003c\/td\u003e\n      \u003ctd\u003e8 to 9 mm\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOperating Temperature\u003c\/td\u003e\n      \u003ctd\u003e-25 to +60 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eStorage Temperature\u003c\/td\u003e\n      \u003ctd\u003e-40 to +85 degC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eRelative Humidity\u003c\/td\u003e\n      \u003ctd\u003e95 %, non-condensing\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eProtection Rating\u003c\/td\u003e\n      \u003ctd\u003eIP20\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch4\u003eCompliance and Certifications\u003c\/h4\u003e\n\u003ctable\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eParameter\u003c\/th\u003e\n      \u003cth\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApprovals and Markings\u003c\/td\u003e\n      \u003ctd\u003eCE, UL, ATEX, IECEx, cFMus, CCC\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eATEX Protection Class\u003c\/td\u003e\n      \u003ctd\u003eII 3(1)G Ex ec [ia Ga] IIC T4 Gc, II (1)D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eIECEx Protection Class\u003c\/td\u003e\n      \u003ctd\u003eEx ec [ia Ga] IIC T4 Gc, [Ex ia Da] IIIC, [Ex ia Ma] I\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eInstallation Guidelines\u003c\/h3\u003e\n\u003col\u003e\n  \u003cli\u003eEnsure the entire automation system and the mounting rack are de-energized before mounting the module.\u003c\/li\u003e\n  \u003cli\u003eVerify that the terminal is correctly mounted on a standard 35 mm DIN rail (EN 60715) using the integrated double slot and key connection.\u003c\/li\u003e\n  \u003cli\u003eEnsure standard Ex i safety spacing and isolation distances are strictly maintained between intrinsically safe and non-intrinsically safe cabling.\u003c\/li\u003e\n  \u003cli\u003eUse a dedicated BECKHOFF ELX9560 power supply terminal to provide compliant E-bus power and safety segregation to the ELX segment.\u003c\/li\u003e\n  \u003cli\u003eConnect the RTD sensors using the designated 2-wire configuration, maintaining appropriate shielding and grounding practices for hazardous locations.\u003c\/li\u003e\n  \u003cli\u003eConfirm that the terminal block is securely locked on the DIN rail and that status LEDs operate correctly upon system initialization.\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"BECKHOFF","offers":[{"title":"Default Title","offer_id":53106434310507,"sku":"ELX3204","price":100.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0953\/3227\/0443\/files\/elx3204-tronooo5tmd.png?v=1776244618","url":"https:\/\/www.plcprotech.com\/products\/beckhoff-elx3204-intrinsically-safe-ethercat-terminal","provider":"PLC ProTech Ltd.","version":"1.0","type":"link"}